Record audio and send to ftp

I was having good app which works, and everything was working good until dropbox has choosen to change the rules...
This is it: Upload recorded audio on dropbox - #10 by StreamLive_Lab

"on September 30th, 2021, the Dropbox OAuth flow will no longer return new long-lived access tokens. It will instead return short-lived access tokens"

So now I have new idea to make app which record audio and then send it to my ftp server.
Is it possible to make it just like with dropbox app?
With this: App Inventor Extensions: FTP | Pura Vida Apps

How to do that? Can someone make aia file?